US3701205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Responsive answer system
Assignee: Docent Corp
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Filing: 1971-09-27
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Granted: 1972-10-31
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Expires: 1991-09-27
Abstract
Abstract A teaching device including a work sheet on which are visibly printed one or more outlined response areas in which a student is expected to write his answer to questions put to him. In addition, two or more feedback areas are visibly outlined on the same or a separate work sheet corresponding to each outlined response area. In a predetermined one of the feedback areas the correct answer is printed as an invisible image. The student writes his answer with a bullet point marker containing a chemical which makes the response visible. Writing the response also develops and makes visible segments of certain preprinted symbols or markings in the response area which identify to the student which feedback area contains the invisibly printed correct answer. The student may thereafter develop the invisible image in the identified feedback area to confirm the correctness of his own response. The latent symbols in the response area are randomly spaced to maximize the chance of being developed when any answer is written but to minimize the chance of being developed by only a few inconspicuous dots of the marking device in an attempt to cheat.
Inventors
- 👤 Stanley Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
G; G09; G09B; G09B3/00; G09B3/02; G09B3/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
239 words
An improved responsive answer learning device of the type wherein a student is instructed to scribe his answer on a work sheet in response to a given question with a marker containing a special developing chemical which simultaneously makes a visible trace on the work sheet and reacts with markings printed with invisible ink on the work sheet to render them visible wherein the improvement comprises a work sheet having a first portion on which is printed at least one outlined response area for the student''s answer and at least a first marking printed with invisible ink within the outlined response area in a pattern such that the student writes over and develops at least part of the first marking in writing his answer, a writing surface, the writing surface having a first and a second feedback areas outlined thereon and a latent image of the correct answer to the question put to the student printed with invisible ink within the first feedback area, the first marking having a predetermined relationship with the first feedback area such that the part of the first marking developed by the student''s written response identifies the first feedback area to the student as the location of the latent image of the correct answer, whereby the student may thereafter compare his response with the correct answer by applying the developing chemical to the first feedback area to render the latent image printed thereon visible.
Claim 2
Dependent Claim
239 words
An improved responsive answer learning device of the type wherein a student is instructed to scribe his answer on a work sheet in response to a given question with a marker containing a special developing chemical which simultaneously makes a visible trace on the work sheet and reacts with markings printed with invisible ink on the work sheet to render them visible wherein the improvement comprises a work sheet having a first portion on which is printed at least one outlined response area for the student''s answer and at least a first marking printed with invisible ink within the outlined response area in a pattern such that the student writes over and develops at least part of the first marking in writing his answer, a writing surface, the writing surface having a first and a second feedback areas outlined thereon and a latent image of the correct answer to the question put to the student printed with invisible ink within the first feedback area, the first marking having a predetermined relationship with the first feedback area such that the part of the first marking developed by the student''s written response identifies the first feedback area to the student as the location of the latent image of the correct answer, whereby the student may thereafter compare his response with the correct answer by applying the developing chemical to the first feedback area to render the latent image printed thereon visible.
Claim 3
Dependent Claim
23 words
An improved responsive answer learning device as recited in claim 1 comprising a work sheet having one or more questions visibly printed thereon.
Claim 4
Dependent Claim
23 words
An improved responsive answer learning device as recited in claim 1 wherein the writing surface comprises a second portion of the work sheet.
Claim 5
Dependent Claim
86 words
An improved responsive answer learning device as recited in claim 1 comprising a work sheet on which a plurality of markings corresponding to the first marking are printed with invisible ink within the outlined response area, the markings being distributed throughout the response area in a pattern which maximizes the chance of being developed by the student''s application of the developing chemical in any continuous pattern but minimizes the chance of being developed by the student''s application of the developing chemical in a substantially discontinuous pattern.
Claim 6
Dependent Claim
73 words
An improved responsive answer learning device as recited in claim 1 comprising a first index symbol visibly printed on the writing surface which identifies the first feedback area, the first visible index symbol being consistent with the developed part of the first marking, and a second index symbol visibly printed on the writing surface which identifies the second feedback area, the second visible index symbol being distinct from the first visible index symbol.
Claim 7
Dependent Claim
42 words
An improved responsive answer learning device as recited in claim 1 wherein the first and second outlined feedback areas are printed on the work sheet adjacent to the outlined response area and the first marking is aligned with the first feedback area.
Claim 8
Dependent Claim
127 words
An improved responsive answer learning device as recited in claim 1 comprising a first index symbol visibly printed both on the writing surface adjacent to the first feedback area and again on the work sheet adjacent to the outlined response area and in alignment with the first marking, a second index symbol visibly printed both on the writing surface adjacent to the second feedback area and again on the work sheet adjacent to the outlined response area and spaced apart from the first index symbol, whereby when the student automatically develops parts of the first marking in writing his answer the first index symbol is identified to him by its alignment with the first marking as an index to the location of the invisibly printed correct answer.
Claim 9
Dependent Claim
184 words
A responsive answer learning device for students comprising, in combination, a work sheet, an outlined area on the work sheet for marking a response to a first question put to the student, at least a first marking invisibly printed on a portion of the work sheet within the outlined response area which is substantially certain to be marked over by the student in writing his answer, a writing surface having a first and a second outlined feedback areas printed thereon, the first feedback area having a latent image of the correct answer to the question put to the student printed with invisible ink therein, means for writing the student''s response in a visible manner on the work sheet with a developing chemical which simultaneously makes visible the first marking in part wherever it is contacted by the developing chemical, the parts of the first marking when developed providing an identification to the student of the first outlined feedback area as the feedback area containing the correct answer, and means for making a visible mark on the writing surface while simultaneously developing the correct answer.
Claim 10
Dependent Claim
184 words
A responsive answer learning device for students comprising, in combination, a work sheet, an outlined area on the work sheet for marking a response to a first question put to the student, at least a first marking invisibly printed on a portion of the work sheet within the outlined response area which is substantially certain to be marked over by the student in writing his answer, a writing surface having a first and a second outlined feedback areas printed thereon, the first feedback area having a latent image of the correct answer to the question put to the student printed with invisible ink therein, means for writing the student''s response in a visible manner on the work sheet with a developing chemical which simultaneously makes visible the first marking in part wherever it is contacted by the developing chemical, the parts of the first marking when developed providing an identification to the student of the first outlined feedback area as the feedback area containing the correct answer, and means for making a visible mark on the writing surface while simultaneously developing the correct answer.
Claim 11
Dependent Claim
237 words
A responsive answer learning device for students comprising, in combination, a work sheet, at least one outlined area visibly printed on the work sheet to receive the student''s written response corresponding to a first question put to the student, at least a first and a second outlined feedback areas visibly printed on the work sheet, a correct answer to the question put to the student printed with invisible ink within the first feedback area, the correct answer being capable of being developed by the application of an appropriate developing chemical to the first outlined feedback area, a visible first symbol visibly printed on the work sheet for identifying the first feedback area, a visible second symbol visibly printed on the work sheet for identifying the second feedback area, at least a third symbol printed with invisible ink on a portion of the work sheet within the outlined response area, the invisible third symbol being capable of being developed wherever it is contacted by an appropriate developing chemical which is applied to the portion of the work sheet by the student in writing his answer, the third symbol when developed at least in part having a predetermined physical relatioNship to the first symbol so that the first symbol is identified to the student as the key to the location of the invisibly printed correct answer which may thereafter be developed by the student to check his own response.
Claim 12
Dependent Claim
237 words
A responsive answer learning device for students comprising, in combination, a work sheet, at least one outlined area visibly printed on the work sheet to receive the student''s written response corresponding to a first question put to the student, at least a first and a second outlined feedback areas visibly printed on the work sheet, a correct answer to the question put to the student printed with invisible ink within the first feedback area, the correct answer being capable of being developed by the application of an appropriate developing chemical to the first outlined feedback area, a visible first symbol visibly printed on the work sheet for identifying the first feedback area, a visible second symbol visibly printed on the work sheet for identifying the second feedback area, at least a third symbol printed with invisible ink on a portion of the work sheet within the outlined response area, the invisible third symbol being capable of being developed wherever it is contacted by an appropriate developing chemical which is applied to the portion of the work sheet by the student in writing his answer, the third symbol when developed at least in part having a predetermined physical relatioNship to the first symbol so that the first symbol is identified to the student as the key to the location of the invisibly printed correct answer which may thereafter be developed by the student to check his own response.
Claim 13
Dependent Claim
102 words
A responsive answer learning device as recited in claim 9 further comprising a fourth symbol and a fifth symbol both visibly printed on the work sheet adjacent to the outlined response area, the fourth symbol being consistent with the first symbol and the fifth symbol being consistent with the second symbol, the fourth symbol being aligned with respect to the third symbol so that the fourth symbol is identified to the student as an index to the location of the correct answer when portions of the third symbol are developed by the student in writing his answer with the appropriate developing chemical.
Claim 14
Independent Claim
116 words
A method of responsive testing comprising the steps of: a. writing an answer in an outlined area on a work sheet to a given question with a developing chemical which simultaneously makes a visible mark and develops portions of a latent symbol invisibly printed in the outlined area, and thereafter b. applying an appropriate developing chemical to a select one of a plurality of feedback areas printed on a writing surface to simultaneously make a visible mark and to develop a correct answer printed with invisible ink in the select feedback area, the select feedback area being identified by the portions of the latent symbol within the outlined area which were developed in writing the answer.
Claim 15
Independent Claim
116 words
A method of responsive testing comprising the steps of: a. writing an answer in an outlined area on a work sheet to a given question with a developing chemical which simultaneously makes a visible mark and develops portions of a latent symbol invisibly printed in the outlined area, and thereafter b. applying an appropriate developing chemical to a select one of a plurality of feedback areas printed on a writing surface to simultaneously make a visible mark and to develop a correct answer printed with invisible ink in the select feedback area, the select feedback area being identified by the portions of the latent symbol within the outlined area which were developed in writing the answer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |